@Kumar0746: Technically, you can't solve an _expression_; you can solve an _equation_, which is a statement of the form expression = expression, which is what you have. Don's suggestion is a good one. Another way is to call the expression on the left side of the equation f(x) and the expression on the right side of the equation g(x), and calculate f(0), g(0), f(1), and g(1). Then x = (f(0) -g(0)) / (f(0) - g(0) - f(1) + g(1)) In the original poster's example, f(0) = 10, f(1) = 8, g(0) = -9, and g(1) = 1, so x = 19/12. Presuming that you want the exact answer, leave it in fractional form, and if the denominator is negative, then negate both numerator and denominator. Then divide both numerator and denominator by their gcd. Finally, if the denominator is 1, report the numerator as the answer; otherwise report the fraction numerator/denominator as the answer. Dave
On Thursday, April 4, 2013 11:43:20 AM UTC-5, Don wrote: > Simplify the expression by evaluating expressions inside parenthesis > first. Follow the order of evaluation, doing multiplications first and > then addition and subtraction. It should be possible to reduce any > expression to the form > ax+b=0. Then x=-b/a. > Don > > On Apr 4, 11:18 am, arun kumar <kumar0...@gmail.com> wrote: > > Given an expression in the form of a string, solve for x. The highest > power > > of x in the expression will be equal to 1. Operators allowed are +, * > and > > -. These are all binary operators. So, 2x would be written as 2*x. Every > > operator will be followed by a single term or a constant. > > > > For example, consider the following equation: > > > > 2*x+5-(4*x-7+(4-2))=10*x-9 Given such an equation, we need to find a > > solution to x > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To unsubscribe from this group and stop receiving emails from it, send an email to algogeeks+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
